Arch Linux

Resiliunt

Member

Registered: 2018-03-23

Posts: 5

Grub not creating menu entries for either arch or windows

I’m trying to set up a dual boot with windows 10 and arch UEFI with grub. My problem is that when generating grub.cfg, grub doesn’t recognize either os. When I reboot grub doesn’t even launch, it goes straight to windows. The closest I got was manually adding entries to 40_custom in which grub launched but neither entry successfully booted the os so I deleted the entries. I’ve tried reinstalling grub and arch a few times and same problems.

sonoran

Member

From: sonoran desert

Registered: 2009-01-12

Posts: 192

Re: Grub not creating menu entries for either arch or windows

Have you installed the package os-prober from Community? Also note that partitions with other
operating systems should be mounted before running grub-mkconfig : https://wiki.archlinux.org/index.php/GR … ation_file

Resiliunt

Member

Registered: 2018-03-23

Posts: 5

Re: Grub not creating menu entries for either arch or windows

Yeah I have installed os-prober but it doesn’t seem to be recognizing either os. Am I supposed to be mounting the windows partition? The arch partition is mounted in /boot.

sonoran

Member

From: sonoran desert

Registered: 2009-01-12

Posts: 192

Re: Grub not creating menu entries for either arch or windows

Yes, the windows boot partition needs to be mounted before running grub-mkconfig.
You might also need to install the ntfs-3g package, to read windows filesystems from Arch.